<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <button>这是button</button>
  <input type="button" value="这是button">
  <form>
    <table border="1" cellspacing="0">
      <tr>
        <td>用户名：</td>
        <!--readonly   readonly="readonly"  readonly="true"-->
        <td><input type="text" value="zhangsan" readonly="true"></td>
      </tr>
      <tr>
        <td>密码：</td>
        <td><input type="password"></td>
      </tr>
      <tr>
        <td>性别：</td>
        <td>
          <input type="radio" name="gender">男
          <input type="radio" name="gender" checked>女
          <input type="radio" name="gender">未知
        </td>
      </tr>
      <tr>
        <td>城市：</td>
        <td>
          <select>
            <option>--请选择--</option>
            <option>青岛</option>
            <option selected>济南</option>
            <option>烟台</option>
          </select>
        </td>
      </tr>
      <tr>
        <td>兴趣爱好：</td>
        <td>
          <input type="checkbox" name="likes">音乐<br>
          <input type="checkbox" name="likes" checked>看书<br>
          <input type="checkbox" name="likes" checked>爬山<br>
        </td>
      </tr>
      <tr>
        <td>自我介绍：</td>
        <td>
          <textarea></textarea>
        </td>
      </tr>
      <tr>
        <td colspan="2">
          <input type="checkbox"> 同意该协议
        </td>
      </tr>
      <tr>
        <td>
          <input type="submit" value="注册">
        </td>
        <td>
          <input type="reset" value="重置">
        </td>
      </tr>
    </table>
  </form>
</body>
</html>